Nakano Note (Nakano wa Kangaeru noda) NK 4038 A/2019 G2
The following improved orbital elements, by S. Nakano, are from 82 observations 2019 Apr. 2 to 2020 Jan. 19. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.45 arc second. The object has passed 3.04 AU from Saturn on 2016 Aug. 12 and 0.99 AU from Jupiter on 2018 June 18 UT. See the previous orbits in NK 4016 (= HICQ 2020). Epoch = 2019 Dec. 23.0 TT T = 2019 Dec. 10.06171 +/- 0.00029 (m.e.) TT Peri. = 82.65266 +/- 0.00013 Node = 208.14429 +/- 0.00004 (2000.0) Inc. = 159.21160 +/- 0.00003 q = 2.2913578 +/- 0.0000029 AU e = 0.9968016 +/- 0.0000044 1/a = +0.0013958 +/- 0.0000019 1/AU origin = +0.002671 (Q= 8) future = +0.002394 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2019/ 190409 F51 0.1- 0.2- 191203 568 0.3+ 0.1- 190402 F51 0.2+ 0.1- 190411 691 0.6+ 0.2+ 191203 568 0.3+ 0.1- 190402 F51 0.2+ 0.1+ 190411 691 0.8+ 0.5+ 191205 C10 0.7- 0.7+ 190402 F51 0.2+ 0.3- 190411 691 0.1+ 0.1- 191205 C10 1.0- 0.1- 190403 H21 0.3+ 0.0 190411 I52 0.3- 0.1- 191205 C10 0.4- 0.2- 190403 H21 0.0 0.1+ 190411 I52 1.3+ 1.0- 191206 H06 0.7+ 0.2+ 190403 H21 0.2+ 0.0 190411 I52 0.0 0.1+ 191206 H06 0.1- 0.1- 190403 I52 0.3- 0.1- 190411 I52 0.4+ 1.0- 191220 H06 0.0 0.1+ 190403 I52 1.2- 0.2- 190412 711 1.1- 0.2+ 191220 H06 0.3- 0.1- 190403 I52 0.3- 0.1+ 190412 711 0.3- 0.9+ 191220 H06 0.4- 0.3- 190403 I52 0.4+ 0.1+ 190412 711 0.3- 0.9+ 191230 H06 0.5+ 0.6- 190403 Q62 0.1- 0.6+ 190415 V06 0.4- 0.4+ 191230 H06 0.2- 0.9- 190403 Q62 0.6- 0.2+ 190415 V06 0.0 0.2+ 2020/ 190403 Q62 0.5- 0.4+ 190415 V06 1.7+ 0.3+ 200101 H06 0.7- 0.3+ 190407 033 0.3+ 0.4+ 190415 V06 1.5+ 0.0 200101 H06 0.4- 0.4+ 190407 033 0.3+ 0.4+ 190501 215 0.3+ 0.2+ 200102 L27 0.3- 0.2- 190407 033 0.1+ 0.1+ 190501 215 0.0 0.1+ 200102 L27 0.0 0.4- 190407 033 0.4- 0.4- 190501 215 0.1- 0.3+ 200102 L27 0.3+ 0.5- 190407 033 0.6- 0.4- 190506 N50 0.6+ 0.2- 200105 703 0.2+ 0.1+ 190407 807 0.3+ 0.2- 190506 N50 0.6+ 0.1- 200105 703 0.1- 0.0 190407 807 0.0 0.1- 190506 N50 0.3+ 0.3- 200105 703 0.5- 0.7+ 190407 807 0.1+ 0.2+ 190705 568 0.4- 0.2+ 200105 703 1.2- 1.0+ 190407 F51 0.4- 0.1+ 190705 568 0.3- 0.3+ 200118 L27 0.1- 0.0 190407 F51 0.2- 0.0 190705 568 0.2- 0.1+ 200119 L27 (5.8+ 4.5-) 190407 F51 0.3- 0.0 190705 568 0.4- 0.1+ 200119 H06 0.2+ 0.3+ 190407 F51 0.2+ 0.2+ 191202 G96 0.3- 0.2+ 200119 H06 0.6+ 0.3+ 190409 F51 0.4- 0.0 191202 G96 0.3+ 0.3+ 200119 H06 0.6+ 0.1- 190409 F51 0.3- 0.1+ 191202 G96 0.2- 0.0 190409 F51 0.0 0.1- 191202 G96 0.2- 0.3- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2020 Feb. 7